JPH05346240A - Radiation type cooling and heating device - Google Patents

Abstract

PURPOSE:To provide a comfortable cooling or heating by radiation. CONSTITUTION:This radiation type cooling and heating device is provided with a plurality of panels 1, whose temperature on the surface can be changed arbitrarily by circulation of cold or hot water and a valve 2 which controls individually the supply of the cold or hot water to each of the panels 1. The device is further provided with a control circuit 8 which controls panel temperature and the number of panels to which cold or hot water is supplied in response to signals from sensors such as a room temperature sensor and a panel temperature sensor. The control circuit 8 also changes a radiation area to obtain a desired amount of radiation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiant cooling and heating apparatus for cooling and heating by radiation from a panel.

[0002]

2. Description of the Related Art In conventional radiant cooling and heating devices, the area of the radiation surface is fixed, and the required radiation amount is obtained by changing the surface temperature of the radiation surface.

[0003]

In this case, depending on the amount of radiation required, the temperature of the radiation surface may become extremely high or low, and thus the temperature of the radiation surface may be extremely high. In such a state, the human body feels uncomfortable due to the non-uniformity of radiation. In addition, during cooling, if the temperature of the radiant surface is lowered until the required cold radiation that cools the room temperature to a comfortable temperature is obtained, dew condensation will occur on the radiant surface, so sufficient cooling cannot be obtained. It was

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a radiant cooling / heating apparatus capable of obtaining comfortable cooling / heating by radiation.

[0005]

SUMMARY OF THE INVENTION The present invention, however, comprises a plurality of panels whose surface temperature can be changed arbitrarily by circulating hot and cold water, and a valve which individually controls the supply of cold and hot water to these panels. It is characterized by including a control circuit for controlling the panel temperature and the number of panels to which cold / hot water is supplied according to signals from sensors such as a room temperature sensor and a panel temperature sensor.

[0006]

According to the present invention, when the required amount of radiation is obtained, since the radiation area is also changed, it is not necessary to greatly change the surface temperature of the panel which is the radiation surface.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. In the figure, reference numeral 1 denotes a cooling and heating panel installed on a ceiling surface in a room, and a plurality of panels are arranged. Further, each panel 1 having a circulation path for cold / hot water therein is connected to the heat exchanger 3 in parallel and via a valve 2. Further, each panel 1 is provided with a dew condensation sensor 4 and a panel temperature sensor 5, respectively, and an indoor temperature sensor 6 and a radiation amount sensor 7 are installed, and these sensor groups are included in each of the valves 2 described above. It is connected to a control circuit 8 that adjusts the opening degree and the temperature of the hot and cold water. The radiation amount sensor 7 is for monitoring whether or not the set radiation amount is achieved.

The control circuit 8 determines the radiation amount Q that the human body feels comfortable from the room temperature T measured by the temperature sensor 6 during heating (FIG. 2 (a)).
From the relationship shown in FIG. 3 (b) of the panel temperature and the panel area for obtaining the radiation amount Q, where the temperature T _H following panel temperature that will discomfort due to uneven human body feels, panel temperature And the panel area are determined, the cold / hot water temperature is set so as to obtain this panel temperature, and the valve 2 is opened / closed so that the above panel area is obtained, and the number of panels 1 for circulating hot water is controlled. To do.

During cold radiation for cooling,
The panel area is set so that cold water is circulated so that a sufficient cooling radiation effect can be obtained while the panel temperature is set to a temperature above which dew condensation does not occur.

[0010]

As described above, in the present invention, it is not necessary to greatly change the surface temperature of the panel which is the radiation surface in order to change the radiation area in order to obtain the required radiation amount. In addition, it is possible to obtain the required amount of radiation and to obtain comfortable cooling and heating without making the temperature of the radiant surface uncomfortable due to the non-uniformity of radiation or causing dew condensation. Is.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of an embodiment.

FIG. 2 is an explanatory diagram of the same as above.

[FIG. 3] (a) is an explanatory diagram of the correlation between radiation amount and comfort, (b)
FIG. 4 is an explanatory diagram of a correlation between a panel temperature and a panel area for obtaining a predetermined radiation amount.

[Explanation of symbols]

 1 panel 2 valve 8 control circuit

Claims (1)

[Claims] 1. A plurality of panels capable of arbitrarily changing the surface temperature by circulating hot and cold water and a valve for individually controlling the supply of cold and hot water to these panels, and a sensor such as a room temperature sensor or a panel temperature sensor. A radiant cooling / heating apparatus, comprising a control circuit for controlling a panel temperature and the number of panels to which cold / hot water is supplied according to a signal.